Buenos Aires

$353+ Cheap flights from San Francisco (SFO) to Buenos Aires (BUE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BUE
Oct 15 — Oct 221
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Cheapflights Tip: The best prices from San Francisco to Buenos Aires are usually found in May or October, booked 6 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from San Francisco to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$1,039
(Aeromexico)

One-way from

$353
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$1,175
From San Francisco to Buenos Aires (BUE)
One-way flight from San Francisco to Buenos Aires (BUE)
Highest demand for flights based on searches. 6% potential increase in price ($79 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Average for round-trip flights in September 2025

Find flight deals from San Francisco to Buenos Aires

Cheapest flights from San Francisco to Buenos Aires
Explore the most affordable flight options available from San Francisco to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Priceline deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/291:35 amSFO - EZE
2 stops23h 15mAvianca
Sat 12/134:55 pmEZE - SFO
2 stops24h 05mAvianca
Deal found 9/13$1,044
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2612:10 amSFO - AEP
3 stops31h 10mMultiple Airlines
Tue 11/412:05 amAEP - SFO
3 stops26h 45mMultiple Airlines
Deal found 9/14$1,044
This Mytrip deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1212:05 amSFO - AEP
3 stops29h 25mMultiple Airlines
Mon 10/2010:15 amAEP - SFO
3 stops30h 20mMultiple Airlines
Deal found 9/13$1,045
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/41:35 amSFO - AEP
2 stops23h 05mMultiple Airlines
Tue 11/1110:50 amAEP - SFO
3 stops30h 10mMultiple Airlines
Deal found 9/14$1,046
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:00 pmSFO - EZE
3 stops29h 45mMultiple Airlines
Mon 11/311:20 amEZE - SFO
3 stops29h 40mMultiple Airlines
Deal found 9/14$1,050
This Trip.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2912:10 amSFO - EZE
2 stops25h 40mAvianca
Thu 11/67:35 amEZE - SFO
2 stops19h 15mAvianca
Deal found 9/15$1,052
This Ovago deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/179:00 amSFO - EZE
2 stops35h 00mLATAM Airlines
Sat 11/224:05 amEZE - SFO
2 stops23h 50mLATAM Airlines
Deal found 9/13$1,053
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:10 pmSFO - AEP
3 stops24h 10mMultiple Airlines
Wed 11/197:00 amAEP - SFO
2 stops19h 50mMultiple Airlines
Deal found 9/14$1,053
This Priceline deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1212:05 amSFO - EZE
2 stops20h 05mAvianca
Sun 10/191:40 amEZE - SFO
2 stops25h 05mAvianca
Deal found 9/15$1,054
This Mytrip deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:00 pmSFO - EZE
3 stops28h 40mMultiple Airlines
Mon 11/245:35 pmEZE - SFO
3 stops33h 15mMultiple Airlines
Deal found 9/13$1,055
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2712:05 amSFO - EZE
3 stops33h 41mMultiple Airlines
Wed 10/16:50 amEZE - SFO
2 stops19h 55mMultiple Airlines
Deal found 9/14$1,056
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/12:20 pmSFO - AEP
3 stops34h 20mMultiple Airlines
Mon 10/137:00 amAEP - SFO
2 stops19h 45mMultiple Airlines
Deal found 9/14$1,056

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from San Francisco to Buenos Aires that are best for you.

Fly from

San Francisco

Fly to

Buenos Aires

Route

Depart

Return

Price

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Mon 10/13

2:20 pm-4:40 am

3 stops34h 20m

Buenos Aires Jorge Newbery

Mon 10/20

7:00 am-10:45 pm

2 stops19h 45m

$1,050

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Tue 11/11

11:10 pm-4:20 am

3 stops24h 10m

Buenos Aires Jorge Newbery

Wed 11/19

7:00 am-9:50 pm

2 stops19h 50m

$1,053

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Wed 10/1

2:20 pm-4:40 am

3 stops34h 20m

Buenos Aires Jorge Newbery

Mon 10/13

7:00 am-10:45 pm

2 stops19h 45m

$1,056

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Sat 11/15

6:00 am-5:55 am

2 stops18h 55m

Buenos Aires Ministro Pistarini

Tue 11/25

10:25 pm-12:32 pm

1 stop19h 07m

$1,065

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Sat 11/15

11:50 am-10:15 am

1 stop17h 25m

Buenos Aires Ministro Pistarini

Wed 11/26

7:50 am-10:55 pm

2 stops20h 05m

$1,065

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Sun 10/12

12:05 am-5:40 am

2 stops25h 35m

Buenos Aires Jorge Newbery

Mon 10/20

7:00 am-10:45 pm

2 stops19h 45m

$1,070

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Sat 11/29

1:35 am-5:40 am

2 stops23h 05m

Buenos Aires Jorge Newbery

Sat 12/13

7:00 am-11:20 pm

2 stops21h 20m

$1,070

San FranciscoBuenos Aires

SFO - AEP

SFOAEP

San Francisco

Tue 10/28

2:35 am-4:00 pm

3 stops33h 25m

Buenos Aires Jorge Newbery

Wed 11/5

5:10 pm-9:50 pm

3 stops33h 40m

$1,075

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Thu 11/13

12:43 am-7:20 am

1 stop25h 37m

Buenos Aires Ministro Pistarini

Thu 11/27

10:05 pm-12:10 pm

1 stop19h 05m

$1,079

San FranciscoBuenos Aires

SFO - EZE

SFOEZE

San Francisco

Thu 11/13

12:43 am-7:20 am

1 stop25h 37m

Buenos Aires Ministro Pistarini

Mon 11/24

10:05 pm-5:47 pm

1 stop24h 42m

$1,079

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 37 results
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Best time to book a flight from San Francisco to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Buenos Aires

How far ahead should I book a flight from San Francisco to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Buenos Aires. Price data was last updated on September 12, 2025.

Booking 6 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Francisco to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from San Francisco to Buenos Aires (average of $795). Flying from San Francisco to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to BUE?

Find hourly flight availability from San Francisco to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

It’s optimal to fly from San Francisco to Buenos Aires in the afternoon. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from San Francisco to Buenos Aires?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Buenos Aires. Price data was last updated on October 6, 2024.

Travelers seeking maximum savings on their San Francisco to Buenos Aires flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated September 15, 2025.
Get a feel of what it's like to fly with Delta, Copa Airlines, and LATAM Airlines from San Francisco to Buenos Aires by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from San Francisco to Buenos Aires?

    Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to Buenos Aires from San Francisco. Booking flights from San Francisco (SFO) to Buenos Aires should be relatively easy as there are 0 daily outbound flights to Buenos Aires from 7 different airlines.

  • How long is the flight from San Francisco to Buenos Aires?

    Delta, Avianca, and United Airlines can get you from San Francisco to Buenos Aires in just under 18h 55m. Your travel time can differ by up to 6h 42m. There are 6459 mi between San Francisco and Buenos Aires. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from San Francisco to Buenos Aires round-trip?

    Flying on LATAM Airlines is currently your cheapest option to Buenos Aires, with prices starting at $658. Additional round-trip tickets that might be worth considering are offered by Avianca and Copa Airlines, with the lowest prices starting at $744 and $1,013, respectively. LATAM Airlines is 46% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular routes from San Francisco to Buenos Aires?

  • Where are the most common layover locations when flying from San Francisco to Buenos Aires?

  • What are some popular things to do or see while on a layover in Houston?

    Houston travelers tend to visit Space Center Houston, House of Blues Houston, and Revention Music Center more than anywhere else. Space Center Houston, House of Blues Houston, and Revention Music Center are located about 33.5 mi, 16.1 mi, and 15.5 mi, respectively from Houston George Bush Intcntl. Travelers can book a car rental at Houston George Bush Intcntl for about $34 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Panama City?

    The majority of Panama City visitors spend their time at Panama Old Cathedral, Amador Causeway, and Panama Canal. Panama Old Cathedral, Amador Causeway, and Panama Canal are located about 13.2 mi, 14.7 mi, and 15.1 mi, respectively from Panama City Tocumen Intl. Those on a layover in Panama City in need of a rental car can book one at Panama City Tocumen Intl for about $12.

  • Where are the least popular layover locations for San Francisco to Buenos Aires flights?

  • Can I find deals for flights from San Francisco to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on San Francisco to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Buenos Aires.

  • Can I find deals for business class flights from San Francisco to Buenos Aires?

    Yes. Cheapflights offers flight deals from San Francisco to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from San Francisco to Buenos Aires (average of $795). Flying from San Francisco to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for San Francisco to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from San Francisco to Buenos Aires

Discover the top 7 airlines that operate flights from San Francisco to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$658Average$996FlexibilityNo cancel feeOn-time81%
AviancaCheapest$744Average$987FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$1,011Average$1,199FlexibilityNo cancel feeOn-time70%
DeltaCheapest$1,025Average$1,455FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,025Average$1,361FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,053Average$1,361FlexibilityNo cancel feeOn-time71%
AeromexicoCheapest$1,119Average$1,281FlexibilityNo cancel feeOn-timeN/A

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